Lay-actuated bobbin-changing device



Jline 22 1926'; 1,589,346

A. ANTOINE LAY ACTUATED BOBBIN CHANGING DEVICE Filed March 28. 1923 71/67: Zqr

Patented June 22, 1926.

UNITED STATES PATENT-O F CE."

AUGUSTE ANTOINE, OF LE CHILLOT, FRANCE.

LAY-ACTUATED BOBBIN-CHANGING DEVICE.

Application filed-March as, 1923, Serial No. 628379;, and in mm ma 4, 1922.

The subject of the present invention is an automatic and rational device for changing theweft for mechanical weaving looms, enabling these latter to maintain their normal maximum speed.

This device is of the type called oscillating with vertical charging and is characterized by the of tubes or cops and the loader form one Oscillating whole, coming into contact above the shuttle box on the lay, at the start of the stroke of this latter, from back to front, and accompanying it until the end of the stroke, whilst the change is effected from above downwards, during the whole stroke of the beater. I

This vertical change is therefore progressive and very gentle, and it is effected during the time of the traverse of the lay from back to front, thus permitting the looms to maintain their normal maximum speed. p

This device for changing the weft, the subject of the present invention, is hereinafter described in its principle of working and is represented diagrammatically by way of example of realization, in the drawings annexed to the present descriptive memorandum, in which: g

1 is a general view giving a side elevation.

Fig. 2 is a view giving a side elevation of a modification of the device for actuating the cop magazine oscillating with vertical loading.

Fig. 3 is a front view of same, and Fig. 4 a plan seen from above.

According to Fig. 1, such a device, applicable to all kinds of mechanical looms, with horizontal or vertical picking motion, comprises a support breast-beam 2', on the side opposite the, weft-stop motion mechanism or of the weft feeler, this support being appropriate to the kind of loom.

Atthe upper part of support 1, is articulated on the spindle 3 a vertical lever 4 having a small oblique arm 5 with a finger 6 solidly fixed to it, the finger 6 bearing against the large obliquely disposed lever 7 also artlculated on the same spindle 3.

The lower end of the large vertical lever 4 has articulated on it a horizontal lever 8, the angular displacement of which above the horizontal is prevented by a stop 9,

rigidly fixedtothe lever 4, or otherwise ar feature that the magazine p 1, fixed behind the on the opposite end of which is keyed a vertical lever 13 which is engaged by and ushed forward by the hook of the weft fork, when the latter, on the occasion of the breaking of a weft thread is itself pushed back towards the front by the hammer.

When, owing to the oscillation of this vertical lever 13, bringing about the partial rotation of shaft 12, the lever 11 is lifted, its finger 10 effects the lifting of the lever 8 to the horizontal position which,

being thus placed, comes '0 posite the lay 14 on the occasion of its fbrward stroke, and is pushed back during its traverse towards the breast-beam 2, resulting in the oscillation of the vertical lever 4 and'the lowering of the small arm 5, the finger '6 of which bears upon the lever 7 and carries it along towards the vertical position.

At the upper part of the support 1 in front of the spindle 3, is articulated on. a

spindle 15, the cop or bobbin-carrying magazine 16 suspended so as to oscillate. This magazine comprises, as usual, a passage 17 for the heads of the cop spindlesv and. a supporting plate for the bodies of the cops 18, 18 18", etc., introduced one after another into the upper part of the magazine from an interchangeable reserve 19 and expelled at the lower part of the magazine where the cop or bobbin 18, ready to be loaded into the shuttle 20, is held by two springs 21.

The oscillation of the magazine 16 is ac tuated by the loader which comprises a usher 22, sliding in guides fitted alongsi e the passage 17, and forming a slide 23, which pushes the last bobbin 18 from above downwards, to the end of the passage 17 of the magazine a spindle 24, fixed at the end of the oscillating lever 7 set in motion by the finger 6.

By this arrangement, the magazine 16 and the loaderor pusher 22 constitute an oscillating whole around the spindle 15, actuated by the oscillation of the lever 7 around the spindle 3, the distance between these two spindles 15 and 3 controlling the displacement of the pusher 22 in itsslide channel 23, 7 upon the oscillation of the lever 4 under the 16 this pusher being mounted on.

the action of which, dependent thrust ofthe lay 14 acting on the lever 8, is supported by the action of the lay 14, which from the commencement of its stroke forwards and after having commenced to push against the horizontal lever 8, which has caused a slight oscillation of the magazine 16, comes into contact by'its shuttle box 25, with the lower part of the said magazine 16, which it carries along with it up to the end of the stroke, and leaves, after the change is effected, at the time of its re.- turn backwards; the exhausted weft cop being ejected outside of the shuttle 20, downwards through the groove 26.

Thus constituted, the working of this device of automatic change of bobbin is as follows:

So, long as the weft is not broken or the cop still contains enough thread, the levers actuated by the weft-stop motion or by the feeler, remain in the position indicated in clotted lines, and the beater 14, at the time of its forward blow, not coming up against the. horizontal lever 8, does not cause any displacement of the magazine 16 nor of the loader 722.

When, the beater being at the end of its stroke, at the back, as shown approximately in dotted lines, and when, through the weftstop motion, for example, the levers have been brought into the position indicated in full lines, in consequence of the breaking of the weft, it happens. that, towards the commencement of its forward stroke, the said heater 14, coming against the lever 8., pushes it back, which'causes, the oscillation at the, lever 4 in the direction of the arrow, hence the oscillation of the lever 7', under the. action of the finger 6, and the descent of the, pusher 22, which, causes the oscillation. of he, magazine. 16 in the direction of the arr w.

By the beginning of this oscillation which corresponds. o. the start of the thrust of. lever 8 by the beater 14,, the end of the magazine comes into the path of the box 25, of the beater, which pushes it back at the same time as the lever 8, which is displaced, dur ng the whole of the forward stroke of the: beater, by the descent of the pusher 22, resulting in the passage of the bobbin 18 into the shuttle 2,0 and the expulsion of the empty bobbin, through the slot 26.

From the start of its backward stroke, the lay leaves the lever 8, as well as the end of magazine 16, which, with all its parts Qarriled along with it, is brought back into its. normal position by one or more springs 27', suitably fitted for the purpose.

The, actuating of the magazine and" of the leader. can. also be effected under the action of the weft-breaker or of the feeler solely by the direct action of the beater, giving thus full. security whilst avoiding false operation.

neaasae For this purpose the oscillating lever 7 of the loader 22, remains mounted on its pivot 3, but it is arranged on the other side of the bobbinrcarrying magazine 16 and is not actuated by any device, the levers 5, 4-, 8 and 11 being dispensed with and replaced by the following actuating mechanism for the magazine and loader as represented in Figures 2, 3 and 4.

On the spindle 15 which carries the oscillating magazine 16', and mounted on the side. opposite the lever 7 of the loader 22', there is a lever 28, oscillating freely, which ends at the. height of the lower end of the magazine by a projection 29', which is preferably of triangular section.

The lever 28* is attached to the magazine 16 by a stirrup like. device or collar 30, which partially surrounds the said magazine, leaving it however a suitable amount. of play 31.

Attached to lever 28, and oscillating about the spindle 15, is a small lever 32, on which bears a strong blade spring 33-, mounted on a small lever 34, keyed on the end of the rod 12 of the weft-stop motion and at the opposite end of the lever 13. which, when actuated by said weft-stop motion brings about the partial rotation in the direction of the arrow.

On the lay, at the entrance of the shuttlebox in which the change takes place, there is fixed an incline 35 of suitable form, in which there is a slot 36, the whole being arranged in the vertical plane of the finger 29 from which it is at a small distance when the loom is working normally and when the magazine is in an inoperative position, being drawn back by its springs 2?.

Thus constituted and simplified, this device for actuating the magazine and the loader, works as follows:

When the weft-breaker or the feeler is, working, acting on the lever 13, the spindle 12' makes the spring 33, oscillate in the direction of the arrow and with it the small arm 32 fixed to the lever 28 thus causing the latter to. oscillate. On account of the play 3 1,"1eft between the stirrup 3.0 and the magazine 16, the stirrup comes into contact with the magazine and carries it along during the movement; of oscillation of the; lever 28, at the same time as the projection 29, lowered from the commencement of the oscillation of the lever 28, is caught in the passage of the lay by the angle of the incline 35, which engages. it during the advancement of the beater and directs it into the slide 36, which carries the lever 28 and the magazine, and consequently compels the loader 22- to, slide towards the bottom of the magazine, pushing down the: fresh cop into the shuttle 20.

As soon as the lay returns, the projection- 29 is released from its slide 36, and the the passage. of the incline 35, the oscillation of the magazine being thereupon actuated by the forward stroke of thelay. This system serves at thesame time as a simple and solid safety mechanism which cannot get out of order. If the apparatus should not, for any reason, return into'its normal position, the loading takes place,

a a suitable mechanismhowever throwing the loom out of gear after three consecutive changes. I

When the reserve 19-is exhausted, it can be replaced by another, filled with cops which pass at each oscillation of the magazine into the slide 17 from whence they descend successively vto the opening from which they are expelled by the pusher 22 1 into the shuttle 20, the opening of which is juxtaposed to that of the magazine during the 'whole of the course'of the forward stroke of the beater. I v It is understood" that this device may have modifications, changes and improvements in the details, and in the construction of the parts constituting it, without departing from the spirit of the invention.

hat I claim is: a a I 1. In a 'loom,a lay, mechanism operative upon a failure of weft, a magazine for cops normally stationary but yieldingly movable into the path of the lay where it will be engaged and operated by the lay during its forward movement, means rendered effective by said mechanism upon a failure of weft for shifting the magazine into the path of the lay, and charging means associated with the magazine and operated by the forward movement thereof for ejecting a cop from the magazine and inserting it into the shuttle box during the forward travel of the magazine and lay.

2. In a loom, a lay, a magazine hinged for movement into the path of the lay so as to be engaged and moved forwardly by the latter during the latter part of its forward travel, means yicldingly holding the magazine out of the path of the lay, a charger provided upon the magazine and operative to eject a cop from the magazine and insert it in the shuttle box, an arm hinged eccentrically of the magazine pivot and connected to the charger whereby swinging of the magazine will cause an operation of the charger, and means operative upon said magazine through said arm for shif ing the magazine into the path of the lay for operation thereby upon a failure of weft.

- 3. In a loom, alay, a magazine hinged upon a fixed point of the machine for move ment into and out of the path of travel of the free end of the lay, so as to be engaged and operated thereby, a charger de vice carried by the magazine for ejecting a cop from the magazine and inserting it intothe shuttle box of the lay, and means acting between the charger device and a fixed point eccentrically of the magazine hinge for causing rotation of said charger about said "fixed point and thereby operating the chargeriby the mere movement of the magazine.

4. In a loom, a lay, a magazine hinged upon a fixed point of the machine for movement into and out of the path of travel of the free end ofxthe lay, so as to be engaged and operated thereby, a charger device carried by the magazine for ejecting a cop from the magazine and inserting it into theshuttle box of the lay, an arm hinged to a point eccentrically of the magazine )ivot and connected to the charger to operate the latter upon a movement of the magazine, means movable into and out of the path of the lay and whichwhen operated by the lay will shiftsaid arm to move the magazine into the path of the lay to be operated directly therefrom, and means operative upon a failure of weft for moving said lay-operated means into the path of the lay for operation therefrom 5. t In a loom, a lay, a cop magazine hinged upon a relatively fixed point of the machine for movement into the path of travel of the free end of the lay so as to be operated directly therefrom, means for moving the magazine into the path of the lay and having a portion shiftable into the path of the lay for operation therefrom, means operative upon a failure of weft for shifting the first means into the path of the lay, and a charger device on the magazine operative by the movement of the magazine to eject a cop from said magazine and insert it into the shuttle loox on the lay.

6. In a loom, a lay, a cop magazine hingedly suspended above the lay for swinging movement forwardly and rearwardly, means for holding the magazine out of the path of the upper end of the lay, the lower end of the magazine having a discharge exit which, when the magazine is engaged and pushed forwardly by the lay will move along with and over the shuttle box on the lay as the lay approaches its forward limit of travel, means operative upon a failure of Weft for shifting the magazine into the path of the lay to be engaged and operated thereby, said last named means having a portion shiftable into the path of the lay for operation therefrom, and charger means on the magazine operated automatically by the forward movement of the magazine for ejecting a cop trom the magazine and into the shuttle box.

7. ln a loom, a lay, a cop magazine mounted so as: to move into the path of the free edge of the lay and, move therewith the shuttlev box 8. In a loom, a lay, a cop magazine mounted so as to move into the.- path of the; free edge of the lay' and move therewith during the latter part of its; forward travel, said magazine having a discharge opem-ng which moves in approxinntte. alignment with the. shuttle box of the lay during said latter part of the lay travel, a charger device slidable. on said magazine for ejecting a cop:

'- from the magazine and inserting: it; into the.

shuttle box, and a, link articulately connected at one end to. said charger device and at its other'encl anchored, to: a relatively fixed point at one side of the magazine;

9'. In a loom, a lay, a cop. magazine mounted so as to move into the path of the free edge: of the lay and. move therewith during the latter part oi its. forward travel, said magazine having a discharge opening which moves in approximate alignment with the shuttle box of the. lay during said. latter part of the lay travel, a. chargerdevice slidable on said magazine for ejecting: a

mega

fixed point at one side. of the magazine and v means operative. automatically upon a failure of Weft for causing a movement of the, magazine into the path oi the lay.

10.. In a loom, a. lay, a magazine hi%'eds in. proximity to the lay, andmeans associated with the lay and magazine for effecting the transfer of a cop: from; the magazine to a. shuttle. box upon. the lay automatically upon av failure of weft, said means including acharger movahl-y mounted on. the magazine, and means connected between the charger and an anchorage point relatively stationary with respect to the hinged, movement of the magazine so that the charger will be automatically operated by the movement of the magazine 11a In a. loom, a swinging, lay, a cop magazine hingedl-y suspended above the; lay to permit. of swinging movement through a sector intersecting; the sector 0t movement of the lay, means; for normal-1y holding the magazine out of the path of the lay, means operative upon a failure of weft for: swing-- i-ng the magazine into: the path of the lay to be engaged thereby, and charger means on the; magazine and opera-ted directly by the swingingmovement. of the. magazine for ejecting a cop from the; magazine; and inserting it into the shuttle box of the lay;

In Witness; whereof, I hereunto subscribe my signature.

AUGUSTE ANTOINE 

